Leroy caliber L511
Automatic movement with small seconds indicator and power reserve indicator.
Diameter: 26.20 mm (11.5’’’)
Frequency: 28,800 vibrations per hour (4 Hz)
No. of jewels: 36
Power reserve: over 42 hours
Variable-inertia balance with four gold setting screws
Escapement wheel in silicon with StruTech blank
Exclusive "grainé-champlevé" décor on bridges, hand-chamfered, with raised mirror-polished markings
22 ct gold oscillating weight
Officially chronometer-certified by the Observatoire National de Besançon
Stamped with the "Viper's Head"